#include "FaceExtractServerI.h"
#include <basic/util/app/AppPreference.hpp>
#include <QtCore/QString>
#include <QtCore/QSharedMemory>
#include <basic/timer_counter/Clocktimer.h>
#include <THFeature_i.h>

FaceExtractServerI::FaceExtractServerI() {
    long threadMax = appPref.getLongData("thread.max");
    long gpuIndex = appPref.getLongData("gpu.index");
    for (int i = 0; i < threadMax; i++) {
        extractResourcesManager.pushResource(i);
    }
    if (gpuIndex < 0) {
        CHKERR(EF_Init(threadMax), threadMax, "EF_Init returns ");
    } else {
        EF_Param *param = new EF_Param[threadMax];
        for (int i = 0; i < threadMax; i++) {
            param[i].nDeviceID = gpuIndex;
        }

        CHKERR(EF_Init_Ex(threadMax, param), threadMax, "EF_Init returns ");
        delete[] param;
    }
}

FaceExtractServerI::~FaceExtractServerI() {
    EF_Release();
}

FaceDetect::Data FaceExtractServerI::faceExtract(Ice::Int width, Ice::Int height, const FaceDetect::FacePos &pos,
                                                 const std::string &shareMemoryName, const Ice::Current &) {
    ClockTimer ct("FaceExtractServerI::faceExtract");
    INFO("faceExtract");
    QSharedMemory shareMemory(QString(shareMemoryName.c_str()));
    FaceDetect::Data feature;
    if (shareMemory.attach()) {
        auto data = shareMemory.constData();
        THFI_FacePos facesPos;
        int channel = extractResourcesManager.getAvilableChannel(shareMemoryName);
        memcpy(&facesPos, &pos, sizeof(facesPos) - sizeof(facesPos.pFacialData));
        memcpy(facesPos.pFacialData, pos.pFacialData.data(), sizeof(facesPos.pFacialData));
        feature.resize(EF_Size());
        int ret = EF_Extract(channel, (BYTE *) data, width, height, 3, &facesPos, feature.data());
        if (ret != 1) {
            ERR("THFP_Execute_V2 faild, returns " << ret)
        }
        return feature;
    } else {
        ERR("shareMemory attach faild");
//        throw std::runtime_error("shareMemory attach faild");
    }

}